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General:
Perennial herb from a creeping rhizome; stems erect or ascending, branched, marked with grooves, exuding milky juice when broken, 15-60 cm tall.
Leaves:
Basal leaves lacking; stem leaves alternate, linear, 0.5-4 cm long, 1-3 mm wide, upper ones reduced to minute scales.
Flowers:
Heads with strap-shaped flowers, solitary at ends of branches; involucres 9-16 mm tall; involucral bracts of two types, the inner ones narrowly oblanceolate, 4-8 (usually 5), the outer ones reduced and bractlike; ray flowers pink or rarely white.
Fruits:
Achenes spindle-shaped, several-nerved, 6-7 mm long; pappus of numerous white, hairlike bristles.
Source: The Illustrated Flora of British Columbia
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